Flexible display, preparation method thereof and electronic device having the same

Abstract

A flexible display includes: an antenna region, provided thereon with a metal trace configured as an antenna of an electronic device to receive or transmit a signal; and a display region configured to display screen content of the electronic device.

The invention claimed is: 
     
       1. A flexible display, comprising:
 an antenna region, provided thereon with a metal trace which is configured as an antenna of an electronic device to receive or transmit a signal; 
 a display region, configured to display screen content of the electronic device; 
 a flexible substrate, a thin film transistor (TFT) circuit layer, a luminescent layer, a flexible encapsulation layer, a polarizing layer, an optically clear adhesive (OCA) layer and a cover glass/polyimide (CG/PI) layer. 
 
     
     
       2. The flexible display according to  claim 1 , wherein the antenna region comprises an antenna subregion located at any edge region of the flexible display; or
 the antenna region comprises two antenna subregions located at two adjacent or opposite edge regions of the flexible display, respectively; or 
 the antenna region comprises three antenna subregions located at any three edge regions of the flexible display, respectively; or 
 the antenna region comprises four antenna subregions located at four edge regions of the flexible display, respectively. 
 
     
     
       3. The flexible display according to  claim 1 , wherein the flexible display has a rectangular cross section, and at least one antenna subregion of the antenna region is located at one or more edge regions of the rectangular cross section; or
 the flexible display has a U-shaped cross section, and at least one antenna subregion of the antenna region is located at one or two side regions of the U-shaped cross section. 
 
     
     
       4. The flexible display according to  claim 1 , wherein the display region is disposed at an upper surface of a shell of the electronic device;
 at least one antenna subregion of the antenna region is disposed at the upper surface of the shell of the electronic device; or 
 at least one antenna subregion of the antenna region is disposed at the upper surface of the shell of the electronic device and extends to a frame of the shell; or 
 at least one antenna subregion of the antenna region is disposed at a frame of the shell. 
 
     
     
       5. The flexible display according to  claim 1 , wherein the display region is disposed at an upper surface of a shell of the electronic device and extends to a frame of the shell; and
 at least one antenna subregion of the antenna region is disposed at the frame of the shell of the electronic device. 
 
     
     
       6. The flexible display according to  claim 4 , wherein an antenna clearance region for at least one antenna subregion has a width greater than 0 in a cross section of the flexible display. 
     
     
       7. The flexible display according to  claim 6 , wherein the width of the antenna clearance region is measured between a first perpendicular line from a boundary point between the display region and the antenna subregion to the upper surface of the shell, and a second perpendicular line from any point of the antenna subregion other than the boundary point to the upper surface of the shell. 
     
     
       8. The flexible display according to  claim 1 , wherein the display region is disposed at an upper surface of a shell of the electronic device; and
 at least one antenna subregion of the antenna region is disposed at a frame of the shell of the electronic device and extends to a lower surface of the shell. 
 
     
     
       9. The flexible display according to  claim 1 , wherein the display region is disposed at an upper surface of a shell of the electronic device and extends to a frame of the shell; and
 at least one antenna subregion of the antenna region is disposed at the frame of the shell of the electronic device and extends to a lower surface of the shell. 
 
     
     
       10. The flexible display according to  claim 8 , wherein for at least one antenna subregion, a maximum value of perpendicular distances from any point of the antenna subregion to a plane where the upper surface of the shell is located is equal to a thickness of the electronic device. 
     
     
       11. The flexible display according to  claim 9 , wherein for at least one antenna subregion, a maximum value of perpendicular distances from any point of the antenna subregion to a plane where the upper surface of the shell is located is equal to a thickness of the electronic device. 
     
     
       12. The flexible display according to  claim 1 , wherein the antenna region is located at a partial or whole region of the flexible display disposed at an upper surface of a shell of the electronic device. 
     
     
       13. The flexible display according to  claim 1 , wherein the metal trace in the antenna region is disposed on one or more of the polarizing layer, the OCA layer and the CG/PI layer. 
     
     
       14. The flexible display according to  claim 1 , further comprising an antenna layer disposed between the OCA layer and the CG/PI layer or between the polarizing layer and the OCA layer,
 wherein the metal trace in the antenna region is disposed on the antenna layer. 
 
     
     
       15. The flexible display according to  claim 1 , wherein the metal trace comprises any one or more selected from copper, iron, aluminum, argentum, tin, gold, nickel, chromium, indium, zinc and alloys or oxides thereof, and fiberglass. 
     
     
       16. An electronic device, comprising:
 a flexible display, comprising:
 an antenna region, provided thereon with a metal trace which is configured as an antenna of an electronic device to receive or transmit a signal; 
 a display region, configured to display screen content of the electronic device; 
 a flexible substrate, a thin film transistor (TFT) circuit layer, a luminescent layer, a flexible encapsulation layer, a polarizing layer, an optically clear adhesive (OCA) layer and a cover glass/polyimide (CG/PI) layer; and 
 
 a shell. 
 
     
     
       17. A method for preparing a flexible display, comprising:
 providing, in sequence, a thin film transistor (TFT) circuit layer, a luminescent layer and a flexible encapsulation layer on a flexible substrate; 
 providing, in sequence, a polarizing layer, an optically clear adhesive (OCA) layer and a cover glass/polyimide (CG/PI) layer on the flexible encapsulation layer; and 
 providing a metal trace on a specified region, 
 wherein the specified region is configured as an antenna region, and the metal trace is configured as an antenna of an electronic device. 
 
     
     
       18. The method according to  claim 17 , wherein providing a metal trace on a specified region comprises providing a metal trace on a specified region of one or more of the polarizing layer, the OCA layer and the CG/PI layer. 
     
     
       19. The method according to  claim 17 , further comprising providing an antenna layer between the optically clear adhesive (OCA) layer and the cover glass/polyimide (CG/PI) layer or between the polarizing layer and the OCA layer,
 wherein providing a metal trace on a specified region comprises providing the metal trace on a specified region of the antenna layer.